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Gnesinka [82]
3 years ago
14

Which energy conversion takes place when a solar cell is used to light a street lamp?

Biology
2 answers:
statuscvo [17]3 years ago
7 0
Choice B is correct.
Solar energy charges the battery or cell; it is then powered through the wires and light comes and heat.
But if the lamp they are talking about doesn't have wire the choose C.
But I am certain it is B
Sunny_sXe [5.5K]3 years ago
4 0

Answer;

B) solar energy → electric energy → light and heat energy

Explanation;

- From the law of conservation of energy, energy can never be created or destroyed, however energy may be converted from one form to another. The devices that transform energy from one form to another are called transducers, such as solar cell, generator, street lam, light bulb, etc.

-Solar cells also called the photovoltaic cells are devices that transform light energy directly into electrical energy.

-A street lamp on the other hand converts electrical energy into heat and light energy.


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Which of these is a consequence of over fertilization?
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Answer:

A. runoff

Explanation:

Runoff is a consequence of over fertilization.

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Caffeine aids in the movement of calcium ions across cell membranes by both making it easier for the Ca2+ channels to open and b
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Caffeine cause dose dependent prominent increase in force of contraction and period of contraction of muscle

<u>Explanation:</u>

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the answer is

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4 0
3 years ago
Read 2 more answers
Part 1- Explain which traits would need to combine in order for a yellow cucumber and a green to make a green cucumber.
adelina 88 [10]
<h2>Part 1.</h2><h2>Answer:</h2>

Only the traits or allele for the green trait will be needed to make a green cucumber.

<h3>Explanation:</h3>

Here in the given example there are two allele responsible for the color of cucumber. One is Y which is dominant allele and codes for the yellow color.

While y is recessive allele and it will be code for the green color.

In case of heterozygous in which the genotype will be Yy but the phenotype will be always yellow because Y is dominant.

In case of genotype yy the phenotype will be green.

So for green cucumber there will be two y in the genotype.

<h2>Part 2.</h2><h2>Answer:</h2>

For yellow cucumber, there is need of only one dominant allele which codes for yellow.

<h3>Explanation:</h3>

According to the given punnet squre, There will be 4 genotypes from the breeding of a yellow cucumber and green cucumber.

The yellow cucumber is heterozygous or homozygous and its genotypes can be Yy and YY relatively.

But for green cucumber the genotype can only be homozygous which is yy.

In the punnet squre the 2 phenotype are yellow and green.

Hence for the yellow cucumber there is only need of one Y allele in genotype.

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3 years ago
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Nikolay [14]
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